\begin{tabular}{l*{12}{D{.}{.}{-1}}}
                &\multicolumn{3}{c}{Ageism Explicit}                     &\multicolumn{3}{c}{Ageism Thermometer}                  &\multicolumn{3}{c}{Ageism Index}                        &\multicolumn{3}{c}{Ageism IAT Score}                    \\\cmidrule(lr){2-4}\cmidrule(lr){5-7}\cmidrule(lr){8-10}\cmidrule(lr){11-13}
                &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         &\multicolumn{1}{c}{(7)}         &\multicolumn{1}{c}{(8)}         &\multicolumn{1}{c}{(9)}         &\multicolumn{1}{c}{(10)}         &\multicolumn{1}{c}{(11)}         &\multicolumn{1}{c}{(12)}         \\
\midrule
Generational Grievances Index&    0.245\sym{***}&                  &    0.217\sym{***}&    0.245\sym{***}&                  &    0.217\sym{***}&    0.207\sym{***}&                  &    0.139\sym{***}&   -0.030\sym{*}  &                  &   -0.028         \\
                &  (0.032)         &                  &  (0.032)         &  (0.039)         &                  &  (0.039)         &  (0.033)         &                  &  (0.030)         &  (0.016)         &                  &  (0.017)         \\
\addlinespace
Personal Grievances Index&                  &    0.207\sym{***}&    0.170\sym{***}&                  &    0.204\sym{***}&    0.167\sym{***}&                  &    0.445\sym{***}&    0.422\sym{***}&                  &   -0.023         &   -0.018         \\
                &                  &  (0.035)         &  (0.034)         &                  &  (0.039)         &  (0.039)         &                  &  (0.033)         &  (0.033)         &                  &  (0.016)         &  (0.017)         \\
\midrule
Observations    &     1860         &     1860         &     1860         &     1877         &     1877         &     1877         &     1874         &     1874         &     1874         &     1230         &     1222         &     1222         \\
Adjusted \(R^{2}\)&    0.031         &    0.022         &    0.045         &    0.024         &    0.016         &    0.034         &    0.026         &    0.120         &    0.131         &    0.002         &    0.001         &    0.002         \\
\end{tabular}
